Step 1: Understanding the Concept.
Think about which DUB therapy produces an effect that copies what a surgical curettage does, complete shedding of the uterine lining, without actually operating on the patient.
Step 2: Key Formula or Approach.
A surgical curettage scrapes away the whole endometrial lining at once. Any drug regimen that causes the same complete, one time shedding through hormone withdrawal is acting like a "medical" version of that same procedure.
Step 3: Detailed Explanation.
Combined pills work by giving steady cyclic hormones to regularize bleeding over time, not by causing one big shedding event, so this does not fit the curettage idea.
Danazol changes the hormone environment to shrink the endometrium gradually, again not matching a sudden, complete shed.
Stopping a course of high dose progestogens causes the whole built up lining to shed together in one withdrawal bleed, very much like what a curette does mechanically. This is the reasoning behind calling high dose progestogen therapy "medical curettage" in gynaecology texts.
A GnRH analogue instead switches off the ovary's hormone signal from the brain, giving a low estrogen state that stops bleeding by starvation of hormone support rather than by one complete shed.
Step 4: Final Answer.
High dose progestogen therapy is the answer, since it is the regimen whose withdrawal produces the complete endometrial shed that earns it the "medical curettage" name.